i4cy πŸ“Œ

@i4cy
12 Followers
7 Following
208 Posts
Guy Fernando (aka i4cy) is a Computing Scientist, Engineer & self appointed Polymath. Programs in various languages, solders to anything electronic. πŸ“» MØOOX
A clear, crisp autumn evening and a bright moon above. After some gentle persuasion, I took the chance to capture it.
Know your colour code! #electronics
[02/03/2024]
I did try β€œringing” the Addmaster 01 Hotline number – but strangely no one answered. So I repaired and restored this vintage 1972 Addmaster calculator myself. It uses an early gas discharge β€œPanaplex” orange display. #VintageElectronics #VintageCalculator #Panaplex
[05/10/2023]
I'm displaying 3D mesh shapes in this C# app on this repaired/restored #VectorScope from the 1970s. Combining new and old - a match in electronic heaven. #3Dgraphics #programming #electronics
[16/08/2023]
Transistor checking using the 1970s made, and the more recent homemade. Can you guess which one is newer?
#Tridendifier #TT144 #Electronics #NPN #PNP
[29/06/2023]
Great for testing rebranded #Z80 chips from China.
[05/06/2023]
Did I watch the FCukup this weekend? Of course not! Instead, being an uber-geek I built this Z80-MBC2 board and revisited the groovy 70s computing era. Definitely a nostalgic trip down computer memory lane.
#100DaysOfCode #z80mbc2 #RetroComputing #cpm #digitalResearch
[05/06/2023]

Just repaired and restored this 1973 Sinclair Cambridge Type-2 vintage calculator. It uses a TMS0801NC calculator chip by Texas Instruments which requires -10V and -15V supplies since it is a PMOS device.

#Sinclair #SinclairCambridge #SirCliveSinclair #RetroComputing
[21/03/2023]

Forget #ChatGPT and Python! Back in 1993 we used C++, 5ΒΌ floppy disks, and a lot of blood, sweat & tears to train a neural network. https://www.i4cy.com/xor_nn/

[16/03/2023]

XOR Neural Network Problem

Running a Keras Tensorflow neural network classifier model on a microcontroller to solve the XOR problem

Website by Guy Fernando

Today 14th March is National Ο€ Day. Learn how to calculate Ο€ to a million decimal places from the comfort of your own browser.
#Ο€ #PiDay #MeetPi

https://www.i4cy.com/pi/

[14/03/2023]

Meet Ο€

Calculating Pi to high precision in a web browser.

Website by Guy Fernando